I have two Ruger SP-101s in .357 Magnum that I bought at least a decade ago. Both are reasonably smooth double actions and the single action trigger pull is heavy, but crisp...no creep. I have dry-fired both a lot and put a couple of hundred rounds through each. No idea of the round count before I owned them, but they both looked like new when purchased.

They are one of the reasons that I thought a new SP-101 in .22 would be great. I'll have to test the trigger pull on the new SPs if the dealer will allow it. I know some guys are funny about that, especially with rimfires....